vue.js used

public/service-worker.js

@@ -0,0 +1,49 @@
+const CACHE_NAME = 'nexus-timer-cache-v1';
+const urlsToCache = [
+  '/',
+  '/index.html',
+  '/manifest.json',
+  '/favicon.ico',
+  '/icons/icon-192x192.png',
+  '/icons/icon-512x512.png',
+  // Add other static assets here, like JS/CSS bundles if not dynamically named
+  // Vite typically names bundles with hashes, so caching them directly might be tricky
+  // For a PWA, focus on caching the app shell and key static assets
+];
+
+self.addEventListener('install', event => {
+  event.waitUntil(
+    caches.open(CACHE_NAME)
+      .then(cache => {
+        console.log('Opened cache');
+        return cache.addAll(urlsToCache);
+      })
+  );
+});
+
+self.addEventListener('fetch', event => {
+  event.respondWith(
+    caches.match(event.request)
+      .then(response => {
+        if (response) {
+          return response; // Serve from cache
+        }
+        return fetch(event.request); // Fetch from network
+      })
+  );
+});
+
+self.addEventListener('activate', event => {
+  const cacheWhitelist = [CACHE_NAME];
+  event.waitUntil(
+    caches.keys().then(cacheNames => {
+      return Promise.all(
+        cacheNames.map(cacheName => {
+          if (cacheWhitelist.indexOf(cacheName) === -1) {
+            return caches.delete(cacheName);
+          }
+        })
+      );
+    })
+  );
+});